/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2021 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   This program is free software: you can redistribute it and/or modify it
 *   under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version. This program is distributed in the
 *   hope that it will be useful, but WITHOUT ANY WARRANTY; without
 *   even the implied warranty of MERCHANTABILITY or FITNESS FOR
 *   A PARTICULAR PURPOSE. See the GNU General Public License
 *   for more details. You should have received a copy of the GNU General
 *   Public License along with this program. If not, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.gui.client.widget.time.panel.strategy.view;

import com.google.common.collect.Maps;
import org.geosdi.geoplatform.gui.client.model.RasterTreeNode;
import org.geosdi.geoplatform.gui.client.widget.GeoPlatformContentPanel;
import org.geosdi.geoplatform.gui.client.widget.tree.GPTreePanel;
import org.geosdi.geoplatform.gui.model.tree.GPBeanTreeModel;

import javax.inject.Inject;
import javax.inject.Singleton;
import java.util.Map;

/**
 * @author Vito Salvia - CNR IMAA geoSDI Group
 * @email vito.salvia@gmail.com
 */
public interface IStrategyView {

    /**
     * @param treePanel
     * @return
     */
    GeoPlatformContentPanel getPanel(GPTreePanel<GPBeanTreeModel> treePanel);

    /**
     * @return
     */
    Map<TypeValueEnum, Object> getExtentValues();

    /**
     * @return
     */
    ITypePanelStrategy getStrategy();


    interface ITypePanelStrategy {

        /**
         * @param treePanel
         * @return
         */
        GeoPlatformContentPanel buildPanel(GPTreePanel<GPBeanTreeModel> treePanel);

        /**
         * @return
         */
        Map<TypeValueEnum, Object> getValuesMap();

    }

    abstract class AbstractPanelStrategy implements ITypePanelStrategy {

        protected Map<TypeValueEnum, Object> valuesMap = Maps.newEnumMap(TypeValueEnum.class);

        /**
         * @return
         */
        public Map<TypeValueEnum, Object> getValuesMap() {
            return valuesMap;
        }

        protected abstract void parseExtentValue(GPTreePanel<GPBeanTreeModel> treePanel);

    }

    @Singleton
    class StrategyView implements IStrategyView {

        final Map<Boolean, ITypePanelStrategy> panelMap = Maps.newHashMap();
        private Boolean currentStrategy;

        @Inject
        public StrategyView() {
            this.panelMap.put(Boolean.FALSE, new PeriodViewStrategy());
            this.panelMap.put(Boolean.TRUE, new RangeViewStrategy());
        }

        /**
         * @param treePanel
         * @return
         */
        @Override
        public GeoPlatformContentPanel getPanel(GPTreePanel<GPBeanTreeModel> treePanel) {
            this.currentStrategy = ((RasterTreeNode) treePanel.getSelectionModel().getSelectedItem()).getExtent().isRange();
            return this.panelMap.get(this.currentStrategy).buildPanel(treePanel);
        }

        @Override
        public Map<TypeValueEnum, Object> getExtentValues() {
            return this.panelMap.get(this.currentStrategy).getValuesMap();
        }

        /**
         * @return
         */
        @Override
        public ITypePanelStrategy getStrategy() {
            return this.panelMap.get(this.currentStrategy);
        }
    }

}
